微信小程序实现全局搜索时搜索结果高亮

<view class='homePage'>
 <input bindinput="bindKeyInput"></input>
 <view wx:for="{{newJson}}" wx:for-item='item' wx:key>
 <rich-text nodes="{{item.name}}"></rich-text> 
 <rich-text nodes="{{item.address}}"></rich-text> 
 <rich-text nodes="{{item.age}}"></rich-text>
 <view wx:if="{{item.aihao}}" wx:for="{{item.aihao}}" wx:for-item='sitem' wx:key>
 <rich-text nodes="{{sitem}}"></rich-text> 
 </view>
 </view>
</view>

//index.js
const app = getApp()
Page({
 data: {
 json: [{ name: 'eiolewkfp', age: 'awdqwwdk', address: 'aueifwhefwfheffoewjowef',aihao:['sdsd','sdfsd','sdsf']}, { name: '98797', age: '6544656', address: '65494364' }], // 可以是任何类型的数据
 newJson: '',
 tempText:''
 },
 onLoad: function (options) {
 this.setData({
 newJson:this.data.json
 })
 },
 digui: function (newJson,obj,key) { // 递归方法，来遍历最内层的字符串并通过正则来替换
 var that = this;
 var reg = new RegExp(that.data.tempText,'g');
 if (newJson.constructor == Array) { 
 newJson.forEach(function (item,index) {
 if (item.constructor == String){
 obj[key].splice(index, 1, item.replace(reg, "<span style='color:red'>" + that.data.tempText + "</span>"))
 }else{
 that.digui(item, newJson);
 }
 });
 } else if (newJson.constructor == Object) {
 var json = {};
 for (var key in newJson) {
 json[key] = newJson;
 that.digui(newJson[key],newJson,key);
 }
 } else if (newJson.constructor == String) { // 这里做全局替换
 if(key){
 obj[key] = newJson.replace(reg, "<span style='color:red'>" + that.data.tempText + "</span>")
 }
 }
 },
 bindKeyInput: function (e) { // 每次输入来监听键盘，处理匹配的数据
 var text = e.detail.value;
 this.setData({
 tempText:text
 })
 var newJson = JSON.parse(JSON.stringify(this.data.json)); // 实现深复制
 
 this.digui(newJson);
 this.setData({
 newJson:newJson
 })
 }
})